The answer is simple, only it took me too long to find it. The problem is you reinstalled apache and this replaced the httpd.conf file. That file is now missing two important line for php: LoadModule php4_module Libexec/apache/libphp4.so AddModule mod_php4.c The solution is to reinstall php it will fix the httpd.conf file. This will solve the Method not allowed for POST

Originally posted as a Categorized Answer.